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聚合独立和依赖模型学习多标签分类

Aggregating Independent and Dependent Models to Learn Multi-label Classifiers
课程网址: http://videolectures.net/ecmlpkdd2011_quevedo_classifiers/  
主讲教师: José Ramón Quevedo
开课单位: 希洪奥维耶多大学
开课时间: 2011-11-30
课程语种: 英语
中文简介:
多标签分类的目的是自动获得能够用更好描述对象的标签标记对象的模型。尽管它看起来像任何其他分类任务,但众所周知,利用标签之间存在的某些相关性有助于提高分类性能。换句话说,对象描述通常不足以诱导良好的模型,也必须考虑标签信息。本文提出了一种将两组分类器结合在一起的聚合方法,一组假定标签之间独立,另一组考虑标签之间完全条件依赖。本文提出的框架不仅适用于多标签分类,而且适用于多标签排序任务。在多个数据集上进行的实验表明,我们的方法在某些评估措施方面优于其他方法,从而保持了其他方法的竞争力。
课程简介: The aim of multi-label classification is to automatically obtain models able to tag objects with the labels that better describe them. Despite it could seem like any other classification task, it is widely known that exploiting the presence of certain correlations between labels helps to improve the classification performance. In other words, object descriptions are usually not enough to induce good models, also label information must be taken into account. This paper presents an aggregated approach that combines two groups of classifiers, one assuming independence between labels, and the other considering fully conditional dependence among them. The framework proposed here can be applied not only for multi-label classification, but also in multi-label ranking tasks. Experiments carried out over several datasets endorse the superiority of our approach with regard to other methods in terms of some evaluation measures, keeping competitiveness in terms of others.
关 键 词: 计算机科学; 机器学习; 监督学习
课程来源: 视频讲座网
最后编审: 2020-06-29:heyf
阅读次数: 26